Schneider Maxx 260 Chalk Marker Chisel Tip 5mm-15mm Line White (Pack 5) - 126049Chalk marker with block tip 5+15 mm for opaque designs on windows and other closed surfaces. Writing colour light blue. The odourless liquid chalk is erasable from almost all glossy surfaces with a moist cloth. The chalk marker can also be used on rough and absorbent media, e. g. paper and cardboard, but cannot be wiped off again.